BRAND Dispensette S Instrucciones De Manejo página 57

Assembly
Use only undamaged tubing
The tubing may not show any signs of damage (e.g, kinks). This must be checked care-
fully before each use.
> If aggressive liquids are to be dispensed, we recommend using a face shield in addi-
tion to the usual safety precautions.
> The bottle must be secured with a bottle holder.
> In order to avoid splashing reagent, always hold the dosing tube firmly, and insert it
into the holder provided after use.
> Rinse the tubing to clean it.
> Do not disassemble.
Unsuitable for hydrofluoric acid (HF)
The flexible discharge tube must never be used to dispense HF (hydrofluoric acid)!
Checking for the correct valve marking
Always take note of the valve marking! (See Replacing the discharge valve, p. 67).
b.
c.
997491
WARNING
Prerequisite:
>
If the instrument was in use, it must be cleaned before
installing the flexible discharge tube (Cleaning, p. 65).
a.
Instruments with a recirculating valve should be set to
'Recirculate', and the valve lever pulled upwards to re-
move it.
b.
Slide the discharge tube housing all the way up, then
pull it forward with gentle up and down motions.
c.
Push the flexible discharge tube holder from the bottom
of the valve block and tighten it. In doing so, the instru-
ment must not be mounted to a bottle. Install the re-
ceiver tube.
d.
Press the plug of the recirculation valve downwards.
5 Operation
57
Operating manual